[RE-wrenches] Rapid shutdown for pole mounts

[Martin Herzfeld]

In other words, for ground-mounts, in accordance with 2014 NEC 690.12(1),
would it be okay to run the DC conductors not inside, but on the side of
the building "5" feet directly to the inverter?

Martin Herzfeld
California Solar Contractors License  #833782
Trenching Contractor, Pole Installation and Maintenance, Instrumentation

UL Certified PV Installer #17, OSHA 30
CompTIA Certified Technical Classroom Trainer (CTT+) #T3NSZCNBBKB4QTQG
OSHA-Authorized Construction Trainer

Telephone & Text: 510-243-0190

Martin Herzfeld is an Accredited Business of the BBB since 2008.

Aaron,

An exterior utility service panel with an underground service lateral is not
considered in or on the building.

Keep the dc conductors off of the building and you will be fine with a
ground-mounted PV system. Don't bring them inside the building, and don't
run them along the exterior of the building.

The whole requirement is to deenergize conductors that a firefighter might
come in contact with while fighting a fire. The most important conductors
are those inside the building. A PV array on top of a buiding is also
required to deenergize the conductors within 10 feet of the array (PV Output
Circuit Conductors). The array is allowed to remain at full voltage.

Bill.

-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Aaron
Mandelkorn
Sent: Friday, April 18, 2014 1:35 PM
To: RE-wrenches
Subject: [RE-wrenches] Rapid shutdown for pole mounts

The rapid shutdown language is so confusing. When looking at the rapid
shutdown language, does PV systems "on" a building refer to only situations
where the array is on a building; or does it include DC conductors as well.
For example, if the DC conductors from a pole mounted array run up the side
of a building before punching in to the inverter, does this require rapid
shutdown?  Is this PV system considered "on" a building?

Aaron

Aaron Mandelkorn
Owner/Solar Specialist
Renewable Energy Outfitters
719-221-5249
970-596-3744
www.reosolar.com
reosolar at gmail.com

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